# Endpoints

The table below shows the UIP Endpoint addresses on supported networks. Use these addresses when connecting your smart contracts to UIP. They handle sending, verifying, and executing crosschain transactions, so make sure your integration references the correct address for your target blockchain.

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{% tab title="Mainnet" %}

<table><thead><tr><th width="44.66668701171875">#</th><th width="125.333251953125" valign="middle">Name</th><th width="100.3333740234375">Chain ID</th><th>Address</th></tr></thead><tbody><tr><td>1</td><td valign="middle">Solana</td><td>11100000000000000501</td><td>uipby67GWuDDt1jZTWFdXNrsSu83kcxt9r5CLPTKGhX</td></tr><tr><td>2</td><td valign="middle">Ethereum</td><td>1</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr><tr><td>3</td><td valign="middle">Sonic</td><td>146</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr><tr><td>4</td><td valign="middle">Avalanche</td><td>43114</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr><tr><td>5</td><td valign="middle">Polygon</td><td>137</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr><tr><td>6</td><td valign="middle">Mantle</td><td>5000</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr><tr><td>7</td><td valign="middle">EIB</td><td>33033</td><td>0x1ef075DC23Ac2B6716Ab35Ee9Bf80A31D30316F7</td></tr><tr><td>8</td><td valign="middle">Abstract</td><td>2741</td><td>0x072C840A8C1D232BBf83E4007d829Be60E81e672</td></tr><tr><td>9</td><td valign="middle">Berachain</td><td>80094</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr><tr><td>10</td><td valign="middle">Manta</td><td>169</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr><tr><td>11</td><td valign="middle">Immutable</td><td>13371</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr><tr><td>12</td><td valign="middle">Optimism</td><td>10</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr><tr><td>13</td><td valign="middle">Arbitrum</td><td>42161</td><td>0x10f6f1569AA23EB5A744F2b3e81C4bC9e4286bB3</td></tr><tr><td>14</td><td valign="middle">Binance</td><td>56</td><td>0xf2D94b3e153052Ea3654feAdDb477D8D16468b76</td></tr><tr><td>15</td><td valign="middle">Base</td><td>8453</td><td>0xc0943B2AC1744a0C3283C9D4F232c9F37623d365</td></tr></tbody></table>
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{% tab title="Testnet" %}

<table><thead><tr><th width="44.66668701171875">#</th><th width="125.3333740234375">Name</th><th width="100">Chain ID</th><th>Address</th></tr></thead><tbody><tr><td>1</td><td>Solana</td><td>100000000000000000000</td><td>uipby67GWuDDt1jZTWFdXNrsSu83kcxt9r5CLPTKGhX</td></tr><tr><td>2</td><td>Ethereum Sepolia</td><td>11155111</td><td>0x6cD023DCfd56F807199fA563b235f61D83EfF8B3</td></tr><tr><td>3</td><td>Sonic Blaze</td><td>57054</td><td>0x7849B81013c9531D5aCB351537142D86837032Ba</td></tr><tr><td>4</td><td>Avalanche Fuji</td><td>43113</td><td>0x98f2547b938DC5FF603bF1cA0feb2E8518fb723F</td></tr><tr><td>5</td><td>Polygon Amoy</td><td>80002</td><td>0x065AAeA3416f518717d3f2f7C03C9B9Ca96bA68C</td></tr><tr><td>6</td><td>Mantle Sepolia</td><td>5003</td><td>0x8Cd0f9e0F24C4e8dD511146249fa2caCC76dD023</td></tr><tr><td>7</td><td>TEIB</td><td>33133</td><td>0xdB106F7FA0CbD91dF3A9e6162fC9a7BB5041E5E0</td></tr><tr><td>8</td><td>Base Sepolia</td><td>84532</td><td>0x641153d6f5cc0aA910db01bdcdE7F23126845037</td></tr></tbody></table>
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